Environment variable set on Windows:
SET QT_SCALE_FACTOR=2.5
on Linux:
export QT_SCALE_FACTOR=2.5

In the terminal window, then run Qt Bitcoin Trader from a terminal command line.
Pick up best scale number for you, replace 2.5 by any other numbers (100%/100=1.0 , 200%/100=2.0 etc.)

You can set environment variable like this QT_SCALE_FACTOR=2.5
App will be scaled to 250%

First research, then invest. If you don't get something here, you are not ready to invest.

The ICO was only the first day, the ongoing sale is going to last for over 340 more days and no one wants to wait a year to trade the coins they bought.